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CVE-2026-13046

7.2 · HIGH

A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling (samld) allows an attacker who has already obtained the ability to write files on…

Published Sep 30, 2026watchguardCWE-502EPSS 0.37%

Overview

CVE-2026-13046 is a high-severity vulnerability affecting watchguard fireware. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling (samld) allows an attacker who has already obtained the ability to write files on the appliance to execute arbitrary code in the context of the samld service by causing samld to load a maliciously crafted session file.

Remediation

Check the references section for vendor advisories and patches from watchguard. Update fireware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
watchguardfireware>= 12.0, < 12.11.10Affected

References

Refpsirt.watchguard.com/CVE-2026-13046

How CyberStrike helps

Frequently asked questions

What is CVE-2026-13046?

CVE-2026-13046 is a high-severity vulnerability affecting watchguard fireware. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-13046?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-13046?

Check the references section for vendor advisories and patches from watchguard. Update fireware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-13046?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-13046 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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